Contract

Performix; Chicago (IL); On-site; USD 90,000 - 130,000; Full time

Job summary

Performix in Chicago seeks a software engineer specializing in systems, networking, and performance optimization. You will design, implement, and maintain custom networking components and client-server models to support fast, reliable data flows.

The role requires strong C++ and Python, Linux/Git, GDB, and Wireshark expertise, plus a passion for high-performance computing or game engine tech. You will collaborate across teams to keep code modular and release-quality.

Qualifications

• Bachelor of Science in Computer Science, Computer Engineering, or related technical discipline.
• Strong proficiency in C++ and Python; familiarity with additional languages is a plus.
• Solid understanding of TCP/UDP networking, socket programming, caching, OS, and computer architecture.
• Hands-on experience with Linux/Bash, Git/GitHub, GDB, Wireshark; familiarity with SFML, Unity, or VR/AR engines.
• CS fundamentals: OO design, algorithms, recursion, and concurrent state management.

Responsibilities

• Design, implement, and maintain networking components and client-server models.
• Apply data structures and algorithms to optimize performance and indexing.
• Develop unit, integration, and stress tests to ensure reliability.
• Trace memory issues and debug multi-threaded or multi-client code using low-level tools.
• Collaborate with cross-functional teams to keep code modular and release-ready.

Skills

C++

Python

TCP/UDP networking

Socket programming

Algorithms & data structures

Concurrent programming

Education

Bachelor of Science in Computer Science or Computer Engineering

Tools

Linux/Bash

Git/GitHub

GDB

Wireshark

SFML

Unity

VR/AR engines

Job description

Chicago, United States | Posted on 10/27/2026

Key Responsibilities:

• Systems & Network Architecture:Design,implement, and maintain custom networking components, client-server models, andprotocol resolvers (UDP/TCP, DNS, socket communications).
• Algorithm & Performance Optimization:Apply datastructures, memory management, and graph search heuristics (e.g., A*, customhashing, priority queues) to solve complex performance and indexing challenges.
• Testing & Quality Assurance:Develop andexecute comprehensive unit, integration, and stress tests to validate networkstate synchronization, catch edge cases, and eliminate execution bottlenecks.
• Debugging & Problem Solving:Utilizelow-level debugging tools (GDB, Wireshark) to trace memory leaks, analyzepacket flow, and debug asynchronous multi-threaded or multi-client executionpaths.
• Cross-Functional Collaboration:Partner withcross-functional teams to design clean, modular codebases and maintain versioncontrol integrity across all release cycles.

Key Requirements:

• Education:Bachelor of Science in ComputerScience, Computer Engineering, or a related technical discipline (GPA 3.5+preferred).
• Core Languages:Strong proficiency inC++andPython.Familiarity with C, C#, Java, SQL, or x86 Assembly is a plus.
• Systems & Networking:Solidunderstanding of TCP/UDP networking principles, socket programming, cachingmechanisms, operating systems, and computer architecture.
• Tools & Environment:Hands-onexperience withLinux/Bash,Git/GitHub,GDB,andWireshark. Experience with SFML, Unity, or VR/AR engines isdesirable.
• CS Fundamentals:Proven command of object-orienteddesign, algorithmic complexity, recursive problem-solving, and concurrent statemanagement.

Desired Competencies:

• Self-startercapable of managing end-to-end projects—from requirement mapping tocomprehensive testing.
• Passionfor interactive media, high-performance computing, or game engine mechanics.
• Strongwritten and verbal communication skills for technical documentation and codereviews.